This breakout board for TI’s DRV8434S microstepping bipolar stepper motor driver operates from 4.5 V to 48 V and can deliver up to approximately 1.2 A continuous per phase without a heat sink or forced air flow (2 A peak). The SPI interface allows configuration of the current limit, step mode (11 step modes from full-step through 1/256-step), decay mode, and stall detection. The driver also features built-in protection against under-voltage, over-current, and over-temperature conditions. This version of has the maximum current limit set to a fixed 2A, and SPI can be used to set the actual current limit to any of 16 evenly spaced values from 125 mA up to 2 A (i.e. in increments of 125 mA).
Alternatives available with variations in these parameter(s):
current limit control header pins soldered?
Select variant…
Compare all products in DRV8434x Stepper Motor Driver Carriers or
16-pin Stepper Motor Drivers.
Dimensions
Size:
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0.6″ × 0.8″
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Weight:
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1.3 g1
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General specifications
Minimum operating voltage:
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4.5 V2
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Maximum operating voltage:
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48 V3
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Continuous current per phase:
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1.2 A4
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Maximum current per phase:
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2 A5
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Minimum logic voltage:
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1.8 V6
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Maximum logic voltage:
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5.5 V7
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Microstep resolutions:
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full with 100% current, full with 70% current, non-circular 1/2, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256
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Current limit control:
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fixed 2A max with SPI scaling
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Reverse voltage protection?:
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N
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Header pins soldered?:
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N
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Identifying markings
PCB dev codes:
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md43b
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Other PCB markings:
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0J13692
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Notes:
- 1
- Without included optional headers.
- 2
- Inputs below 6 V reduce the maximum settable current limit. With 4.5 V in the maximum settable limit is 1.75 A.
- 3
- Not intended for use with 48V batteries, which can be well above nominal when fully charged.
- 4
- Without a heat sink or forced air flow.
- 5
- With sufficient additional cooling.
- 6
- Logic high threshold varies for two-state, tri-state, and quad-state pins. See datasheet for details.
- 7
- Absolute maximum voltage on any input is 5.75 V.